# US 10,480,610 B2 · Noise vibration energy damping structure in vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,610 B2 - Document ID: US10480610B2 - Status: Granted - Kind: B2 - Application number: 16/047,617 - Filed: 2018-07-27 - Published: 2019-02-07 - Granted: 2019-11-19 - Earliest claimed: 2017-08-03 - Assignees: Mazda Motor Corporation - Applicants: Mazda Motor Corporation - Inventors: Shintaro Shinbo; Seiji Nakano; Kohji Hashida; Jumpei Kawamoto; Hiroaki Ishizu; Masashi Notomi - Web page: https://patentgrep.com/patent/US10480610B2 ## CPC - F16F 15/04: using elastic means (single elements or their attachment F16F1/00 - F16F13/00); {(F16F15/023, F16F15/03 take precedence)} - B62D 21/11: with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions} - G10K 11/172: using resonance effects - E01B 19/003: {Means for reducing the development or propagation of noise} - G10K 11/04: Acoustic filters {; Acoustic resonators} - G10K 2210/3211: Active mounts for vibrating structures with means to actively suppress the vibration, e.g. for vehicles - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR - E01B: PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS (derailing or rerailing blocks on track, track brakes or retarders B61K) ## Abstract Disclosed herein is an damping structure including a vibration energy damping member absorbing, from a vibration energy path member, at least part of noise vibration energy transmitted through the vibration energy path member, wherein a length of the vibration energy damping member is equal to or more than a half of a wavelength of the vibration of the vibration energy path member, and at least one attachment part attaching the vibration energy damping member to the vibration energy path member is disposed in a position corresponding to an antinode of the vibration of the vibration energy path member. ## Claims ### Claim 1 A noise vibration energy damping structure in a vehicle, the noise vibration energy damping structure damping noise vibration energy that is generated at a power unit of the vehicle comprised of an engine and a transmission and that is to be transmitted to a cabin of the vehicle, the noise vibration energy damping structure comprising: a vibration energy path member, to which a supporting device supporting the power unit is attached, constituting a transmission path which vibrates by receiving the noise vibration energy transmitted through the supporting device, and which transmits the noise vibration energy to the cabin; and a vibration energy damping member provided on the transmission path of the vibration energy path member, and absorbing, from the vibration energy path member, at least part of the noise vibration energy to be transmitted from the vibration energy path member to the cabin, wherein the vibration energy damping member is disposed substantially along a transmission direction in which vibration of the vibration energy path member caused by the noise vibration energy is transmitted, a length of the vibration energy damping member is equal to or more than a half of a wavelength of the vibration of the vibration energy path member, and the vibration energy path member is provided with at least one attachment part attaching the vibration energy damping member to the vibration energy path member, and the at least one attachment part is disposed in a position corresponding to a position of at least one antinode of the vibration of the vibration energy path member. ### Claim 2 (depends on 1) The noise vibration energy damping structure of claim 1, wherein the vibration energy damping member has an energy converting function of converting the noise vibration energy moved from the vibration energy path member into heat energy. ### Claim 3 (depends on 2) The noise vibration energy damping structure of claim 2, wherein the vibration energy damping member has a planar shape, and the vibration energy damping member is attached to the vibration energy path member so as to constitute a fin using the at least one attachment part as a fixed end, and the fin is configured to vibrate due to the noise vibration energy moved from the vibration energy path member to convert the noise vibration energy into the heat energy. ### Claim 4 (depends on 3) The noise vibration energy damping structure of claim 3, wherein the vibration energy path member is a front side frame of the vehicle, the front side frame extends in a longitudinal direction of the vehicle, and has a rectangular cross section, the supporting device is disposed in an intermediate part of the front side frame in the longitudinal direction of the vehicle, and the vibration energy damping member is attached to at least one of side walls of the front side frame in a width direction of the vehicle at a longitudinal position between the supporting device and the cabin. ### Claim 5 (depends on 3) The noise vibration energy damping structure of claim 3, wherein the vibration energy path member is a suspension cross member coupling a pair of front side frames provided to the vehicle together in a width direction of the vehicle, a starting point of the suspension cross member at which transmission of the noise vibration energy is started is a support portion of the supporting device disposed in substantially a central portion of the suspension cross member in the width direction of the vehicle, and the vibration energy damping member extends in the width direction of the vehicle, and is attached to the suspension cross member so as to include the support portion of the suspension cross member. ### Claim 6 (depends on 1) The noise vibration energy damping structure of claim 1, wherein the at least one attachment part includes a plurality of attachment parts, and each of the attachment parts is selectively disposed in a position corresponding to the at least one antinode of the vibration of the vibration energy path member. ### Claim 7 (depends on 6) The noise vibration energy damping structure of claim 6, wherein the vibration energy damping member has an energy converting function of converting the noise vibration energy moved from the vibration energy path member into heat energy. ### Claim 8 (depends on 7) The noise vibration energy damping structure of claim 7, wherein the vibration energy damping member has a planar shape, and the vibration energy damping member is attached to the vibration energy path member so as to constitute a fin using the at least one attachment part as a fixed end, and the fin is configured to vibrate due to the noise vibration energy moved from the vibration energy path member to convert the noise vibration energy into the heat energy. ### Claim 9 (depends on 8) The noise vibration energy damping structure of claim 8, wherein the vibration energy path member is a front side frame of the vehicle, the front side frame extends in a longitudinal direction of the vehicle, and has a rectangular cross section, the supporting device is disposed in an intermediate part of the front side frame in the longitudinal direction of the vehicle, and the vibration energy damping member is attached to at least one of side walls of the front side frame in a width direction of the vehicle at a longitudinal position between the supporting device and the cabin. ### Claim 10 (depends on 8) The noise vibration energy damping structure of claim 8, wherein the vibration energy path member is a suspension cross member coupling a pair of front side frames provided to the vehicle together in a width direction of the vehicle, a starting point of the suspension cross member at which transmission of the noise vibration energy is started is a support portion of the supporting device disposed in substantially a central portion of the suspension cross member in the width direction of the vehicle, and the vibration energy damping member extends in the width direction of the vehicle, and is attached to the suspension cross member so as to include the support portion of the suspension cross member.